baking soda (crystalized)

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Nov 21, 2017 Club meeting

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           When you see this, what do you think it is? The spring of a mattress? Chains? Threads? Well.. they're all good guesses but are all incorrect! portable microscope portable microscope It turns out, these are nylon polymers connected to create stockings!!! Believe it or not, nylon comes from petroleum, just like how asphalt also comes from it. It is not only sturdy but also flexible!        The "chain" like nylon polymers are actually extremely flexible despite its appearance! When I stretched it, I observed the polymers bending to oval-like shapes!     A little background history: The nylon stockings were created in 1939 and were also used in World War II for manufacturing tents and parachutes! The stockings were also big in popularity during the mid-twentieth century. The Polyamide is actually very thermal and chemical resistant.   Personally, I wonder whether this polymer could return to benefit the world
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Oct 20, 2017 club meeting: Special dots in a lipstick

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For all of you who wear lipstick for makeup, this may not be the brightest news to listen to as the post will talk about what lipstick consists of. See those colorful spots on the lipstick smudge? Well it turns out . . . those are different types of metals! The FDA released a study in 2009 which showed lead in every lipstick sample that was tested! The metals include lead (as stated above), beryllium, thallium, and more! According to the University of California, women put on lipstick from two to fourteen times a day, meaning a significant amount of possible lipstick ingestion! Perhaps in the future, lipsticks should be created with less harmful substances that would also substitute the large amount of metals found in lipstick. For example, Cleopatra of ancient Egypt was said to create lipstick by crushing bugs to obtain the red color!
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